Sun Compass

Sun Compass can act as a navigation aid if you’re ever lost in a forest with wireless coverage and a fully charged iPhone. Uh-huh.

If you get lost in the woods where there’s cell service, Sun Compass can help you find your way back. The app pinpoints your location, then (depending on the time of day), displays a sun or moon overlaid on a compass. You then lay your iPhone flat and move the sun/moon dial to point in the general direction of the actual sun or moon. Depending on which way the sun/moon is setting or rising, you’ll be able to determine the direction in which you need to move.